Samson Controls Pty Ltd

Street name: U13-15/61-71 Beauchamp Road
Suburb: Matraville
State: NSW
Post Code: 2036
Postal Address: As above
  Sydney  Melbourne  Perth Brisbane
Phone: 61 (0)2 9316 7800 03 9645 7393 08 9248 7686 0755946705
Fax:  61 2 9666 5963  03 9645 7394 08 9248 7689 0755946255

Contact Names

Managing Director:  Mr Jacky van Wolput
Sales Department: Sydney: 

Mr. Fred Azzi
Mr David Kool
Mr Jeremy Pearson

  Brisbane Mr Gerard Foran

Mr Phillip Ring
Mr Robert McQuade


Mr Angus Watson
Mobile: 0448 231615

Using Instrumented Systems for Overpressure Protection

By Dr. Angela E. Summers, PE
SIS-TECH Solutions, LLC - Houston, TX

Prepared for Presentation at the 34 th Annual Loss Prevention Symposium, March 6-8, 2000 Overpressure Protection Alternative Session
Copyright © SIS-TECH Solutions, LLC, December 1999

Accepted for publication in Chemical Engineering Progress

AICHE shall not be responsible for statements or opinions contained in papers or printed publications.


Industry is...

Viewpoint on ISA TR84.0.02 – Simplified Methods and Fault Tree Analysis

Angela E. Summers, Ph.D., P.E.
President, SIS-TECH Solutions, LLC
PMB-295, 2323 Clear Lake City Blvd Houston, Texas 77062-8032
713-320-4777 (phone)

§ 281-461-8109 (fax)

Accepted for publication in ISA Transactions


ANSI/ISA-S84.01-1996 and IEC 61508 require the establishment of a safety integrity level for any safety instrumented system or safety related system used to mitigate risk. Each...

Techniques for Assigning A Target Safety Integrity Level

Angela E. Summers, Ph.D.
This paper was published in ISA Transactions 37 (1998) 95-104.


The new ANSI/ISA S84.01-1996 (1) Application of safety instrumented systems for the process industries, standard requires that companies assign a target safety integrity level (SIL) for all safety instrumented systems (SIS) applications. The assignment of the target SIL is a decision requiring the extension of the process hazards analysis...

Safety Requirements Specification in a Capital Project Environment

Dr. Angela E. Summers, P.E., President, SIS-TECH SOLUTIONS, LLC
PMB-295, 2323 Clear Lake City Blvd, Houston, TX 77062-8032
713-320-4777 (phone) 281-461-8109 (fax) This email address is being protected from spambots. You need JavaScript enabled to view it.

Presented at the Texas A&M Instrumentation Symposium 2000
Submitted for publication in Control Engineering


The safety requirement specification (SRS) is a new documentation requirement of the safety system standards. It must be...